Device for opening and closing vehicle and like windows



P. MOMMER. ET AL 2,219,527.

DEVICE FOR OPENING AND CLOSING VE'rllCLE AND LIKE WINDOWS Oct. 29. 1940.

Filed Nov. 9/1957 -IIIIIIIIIIIIlI/lfllflfill llll lllfllillll 1 Patented Oct. 29, 1940 I I UNITED STATES PATENT OFFICE DEVICE FOR OPENING AND CLOSING VE- HICLE AND LIKE WINDOWS Paul Mommer and Karl Mommcr, Wuppertal- Elberteld, Germany 1 Application November 9, 1937, Serial No. 173,713 In Germany June 15, 1937 3 Claims. (Cl. 268-124) The present invention is concerned with a de-' the window into the required position. It is imvice for opening and closing the windows of vematerial whether this coincides with either of the hicles and the like. end positions or any intermediate position of the In the previous devices of this nature, the apwindow, since the latter invariably remains fixed 5 paratus generally included gearing which was y when the motor is cut off.

actuated by means of a hand-crank projecting Another object of the invention is to provide a through the wall of the door into the interior of motor of the reversible type for operating the the vehicle. The crank when operated caused crank with an alternative forward or backward two arms, which bore through rollers on the lower movement, so that the window can be brought edge 0! the pane of window-glass, to move toback from an intermediate position into the i0 wards one another scissor-fashion. opened position without having first to assume With these devices it was impossible for the the closed position, or vice versa. The reversal of driver to open or close the windows during drivthe motor may be efiected by means of a switch ing without endangering the automobile and its arranged on the instrument or dash board of the occupants. Furthermore, the form of gearing vehicle.

used was comparatively costly and unreliable. In order to enable the same toothed wheel to be Amongst other drawbacks, the glass was very freemployed for the most varied lengths of window quently broken, due to the fact that the window movement, this wheel is given a longitudinal slot was only mountedloosely on the arms. in which is mounted, so as to be capable of ad- Again, the handle -for operating the window justment and setting therein, the pivot pin of them projected into the interior of the vehicle and often crank rod. In the case of win with 8 Small proved an annoyance, and the fabric facing had total movement, the pin, and with" it the rod, is to be applied from the interior of the automobile. moved upwards a d fi at the p r t o It is an object or the present invention to prothe slot, whereas in the case of windows with a vide a device for opening and closing an automogreater total movement it is moved downwards 25 bile or other vehicle window by the simple process before being fixed. of making and breaking a circuit through a power It is a further object of the invention to obtain source and the elimination of the usual projecting. a satisfactory guidance of the windows, and in hand crank. v the caseof unilaterally-guided windows to pre- Another object of the invention is a vehicle door vent tilting of the latt o th s end, a helical so having a built-in motor and a crank rod attached spring is e a ed t t e ow r free end of the to the window of the door and adapted to be window and this sp 15 Secured y its t r driven by said motor. Thus the driver is able, extremity to the interiorv of the door at the lower during driving and merely by turning a knob, portion. When the window is raised or lowered,

switch or the like on the dashboard, to open or t e Sp maintains t in hOriZOhtfll Position 35 close the window without interference with the The accompanying drawing illustrates one emdriving, and moreover the extreme simplicity of bodiment of the invention. In the drawing, the device ensures a safe and certain operation. Figure 1 is a front view of the device showing Another object of the invention is to pivot one it built into the door of an automobile (with the end of the crank red, the length of which correfabric covering omitted for the sake of clarity). sponds to the distance between the upper edge of Figure 2 is a section on the line II--II of Fig. 1; thewiridow in the fully closed and in the fully Figure 3 is a diagram of the electrical connecopened position, to a toothed wheel mounted in tions of the device. the door and arranged to be driven through a spur As illustrated in the drawing, the window 3 is wheel fastened on the shaft of the motor built inadapted to be moved up and down in the door i 45 to the door. When the circuit through the power and is guided in the guideways 2.. A metal band source is made the motor and the spur wheel, and 5 embraces the lower edge 4 of the window, and a consequently the toothed wheel, are set into mobolt 6 passes through both the band 5 and the tion and the crank rod pushes the window up window pane and carries the crank rod I.

until the topmost position of the latter is reached. A further bolt 5 Pa through t e lo er end I m If the power source is then cut out the window of the'rod I and into a slot III in a toothed wheel remains in its new position, or otherwise the and a hut is screwed On to a threaded P crank rod will be moved downwards again taking of the bolt 9 on the far side of the wheel I I. the window with it. This process can be repeated A spur wheel I meshes with the teeth oi wheel as many times as is considered desirable to bring a l I, this spur wheel being mounted on the shaft ll 5 of a motor is of any suitable and usual type. Leads I! run from this motor by way of a power source, for example a battery 22, to a switch 23 arranged on the instrument board or dash board of the automobile. The battery and switch are diagrammatically illustrated in Fig. 3.

The toothed wheel II and the motor ii are attached to a common plate I 8 inside the door I, and this plate is welded to brackets llfastened to the sheet metal cover 20 of the door.

Apart from the rod 1, the lower edge 4 of the window 3 is engaged by a spring 2!, the other end of which is attached to the inside of the cover sheet 20.

The device described lowing fashion.

If the switch 23 diagrammatically illustrated in Fig. 3 is turned in the direction of arrow I, the circuit a is closed and the motor I6 set into operation, thus causing rotation of the planet wheel H and consequently of wheel I I.

above functions in the folslot II is carried round and imparts a corresponding movement to the rod 1 so that the window 3 :is raised. It is obvious that after the slot ill or bolt 9 has reached its topmost position, further movement lowers instead of raises the window.

. When the switch is returned to its middle positlon in Fig. 3 the circuit is broken and the window remains in the position which it has been led to occupy.

It is seen from inspection of Fig. 3 that rotation of the switch in the direction of arrow II closes a second circuit 1) similar to circuit a. This second circuit includes a second motor I 6 built in the other or another door of the automobile and arranged to operate the window of this door by means similar to those shown in Figs. 1 and 2. .In the same way, therefore, the window of this second door will be moved until the switch 23 is returned from its right hand to its middle position.

Thus a driver of the automobile has only to turn the switch on the instrument or dash board one way or the other and the desired window is opened. The operation can readily be undertaken during actual driving, since the driver has only to take his hand momentarily from the steering wheel to operate switch 23.

While I have, in the above description, referred to one particular embodiment of my invention, it is to be understood that I do not wish to be limited thereto but only .to those constructions comprehended within the scope of the appended claims.

I What I claim and desire to secure by Letters comprising an electric Patent is:

l. A device for opening and closing windows of automotive vehicles comprising a frame having lower and upper portions, respectively, a mechanism housed in said lower portion and below said window, a lateral slideway extending from said upper portion into said lower portion for guiding one side edge of said window, said mechanism motor, a gear in operative connection with said motor, and a crank rod ad- As a result, the

vously lowered and raised within lustably pivoted on said gear and connected with its free end to the lower edge of said window, and compressible spring means secured with one of its ends within said lower frame portion and conwith its other end to said lower edge of said window at a point adjacent the other side edge thereof, whereby upon rotation of said motor said window is continuously lowered and raised within said upper frame portion by said adjusted crank a predetermined distance and guided along said slideway against which said window is urged through the action of said spring means to prevent tilting thereof.

2. A device for opening and closing windows of automotive vehicles comprising a. frame having lower and upperpor-tions, respectively, a mechanism housed in said lower portion and below said window, a lateral slideway extending from said justably-pivoted on automotive vehicles comprising a frame having lower and upper portions, respectively, a mechanism housed in said lower portion and below said upper portion into said lower portion for guiding one side edge of said window, said mechanism comprising an electric motor, a gear in operative connection with said motor, and a crank rod adjustably pivoted on said gear and connected with its free end to the lower edge of said window, and spring means extensible and compressible within the space of said lower frame portion, one of the ends of said spring means being fixed within said lower portion and connected with its other end to said lower edge of said window at a point adiacent the other side edge thereoi, whereby upon rotation of said motor said window is continusaid upper frame portion by said crank adjusted for a path determined by the distance between the upper and lower edges of said window and guided along said slideway against which said window is urged through the action of said spring means to prevent tllting thereof.

PAUL MOMMER. KARL MOMMER.

a lateral slideway extending from said 

